regex - regexp_extract not working -

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i have string created rsa key 1234 intelligent expense id 54678||||||"

and need extract 54678 in hive ql. using 

select description,regexp_extract(description,'id\s(\d*)\|') cctkey smartmatching limit 10

i tested regex , looks fine. hive not return output me. showing null. can help

you need escape \s, \d , \|. should be

id\\s(\\d*)\\|

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